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Our flagship EVOH packaging film grades engineered for superior oxygen barrier performance across diverse packaging environments.
Ethylene Vinyl Alcohol (EVOH) copolymer is the gold standard in high-barrier packaging film technology. As a semicrystalline thermoplastic polymer, EVOH delivers an exceptionally low oxygen transmission rate (OTR), making it the preferred barrier layer in multilayer coextruded films used across food, pharmaceutical, agricultural, and industrial packaging.
Oxygen is the primary driver of oxidative degradation in packaged goods — causing spoilage, discoloration, rancidity, and loss of nutritional value in food products, as well as degradation of pharmaceutical compounds and electronic components. EVOH packaging films form an invisible but impenetrable molecular shield against oxygen permeation, extending product shelf life by 3–5× compared to conventional plastic films.
The ethylene content of EVOH resin (typically 27–48 mol%) directly governs the balance between oxygen barrier performance and moisture resistance. Lower ethylene content yields superior oxygen barrier properties under dry conditions, while higher ethylene content improves processability and moisture tolerance — enabling TPS to engineer grade-specific solutions for every application scenario.
EVOH offers oxygen barrier performance 10,000× better than LDPE and 100× better than nylon (PA) under dry conditions. Its unique molecular structure — hydroxyl groups forming hydrogen bonds — creates a crystalline lattice that is virtually impermeable to oxygen molecules, while remaining fully compatible with standard co-extrusion and lamination processes used in modern flexible packaging lines.
The global EVOH packaging film market is undergoing rapid transformation, propelled by regulatory shifts, consumer behavior changes, and technological innovation.
The packaging industry is under intense pressure to eliminate multi-material laminate waste. Mono-material EVOH structures — where the barrier layer is compatible with the base polymer for recycling — are emerging as the dominant design paradigm. TPS EVOH 3801-SF is purpose-engineered for this recyclable casual food packaging trend, offering high oxygen barrier performance within a fully recyclable film architecture that meets EU and global EPR (Extended Producer Responsibility) regulations.
Beyond food, EVOH oxygen barrier films are rapidly penetrating the electronics packaging sector. Sensitive semiconductors, printed circuit boards, lithium battery components, and precision sensors require both moisture and oxygen exclusion during storage and transit. TPS EVOH 4401-EP addresses this high-growth segment, delivering dual moisture-and-oxygen barrier performance that prevents oxidative corrosion and electrostatic degradation — a market expanding at over 9% CAGR driven by global electronics manufacturing growth.
Modified atmosphere packaging (MAP) for fresh produce, fumigant retention films for soil treatment, and controlled-release agrochemical pouches all demand precision oxygen barrier control. EVOH-based agricultural films like SVW™ EW-4401S are enabling farmers and agribusinesses to reduce pesticide usage, extend post-harvest freshness windows, and comply with stringent food safety regulations — driving a new wave of high-value agricultural film adoption across Asia-Pacific, Europe, and the Americas.
Pharmaceutical manufacturers are increasingly specifying EVOH barrier layers in blister packs, sachets, and cold-chain pouches to protect oxygen-sensitive APIs (active pharmaceutical ingredients), biologics, and probiotics. Regulatory bodies including the FDA and EMA now require validated barrier performance data — a standard that EVOH films consistently meet, positioning them as the compliance-ready choice for next-generation drug packaging.
Modern packaging lines increasingly use 5-layer, 7-layer, and 9-layer co-extrusion to embed EVOH as the central barrier layer, sandwiched between adhesive tie layers and structural polyolefin skins. This architecture maximizes barrier efficiency while minimizing EVOH content (typically 5–15% of total film thickness), optimizing cost-performance ratios. TPS EVOH grades are formulated for excellent melt compatibility with PE, PP, and PA tie-layer systems used in state-of-the-art co-extrusion equipment.
The convergence of EVOH barrier films with oxygen scavenger technologies, time-temperature indicators, and NFC-enabled freshness sensors is creating a new category of intelligent packaging. EVOH's chemical inertness and optical clarity make it the ideal substrate for integrating active components without compromising barrier integrity — a trend expected to generate over $2.1 billion in smart packaging value by 2028, with EVOH films at the core of most commercial implementations.
From farm to pharmacy, EVOH packaging films for oxygen barriers serve as the critical protection layer across the most demanding packaging environments.
Fresh and processed meat packaging is the largest single application segment for EVOH oxygen barrier films. Vacuum skin packaging (VSP) and modified atmosphere packaging (MAP) for beef, pork, poultry, and seafood rely on EVOH barrier layers to maintain a sub-0.1% oxygen atmosphere inside the pack, preventing myoglobin oxidation (browning), microbial growth, and lipid rancidity. EVOH-based meat packaging films extend chilled shelf life from 7–10 days to 21–28 days — a transformative commercial benefit for retailers and processors managing complex cold-chain logistics.
Fresh produce packaging demands a precise balance: EVOH provides the oxygen barrier layer while micro-perforations or breathable outer layers allow CO₂ egress from respiring produce. This engineered atmosphere dramatically slows enzymatic browning, pathogen growth, and ethylene-induced ripening. EVOH films are used in retail-ready salad bags, cut fruit packs, berry clamshells, and export cartons for high-value produce — enabling supermarkets to reduce fresh food waste by 25–40% while maintaining premium visual appeal at point of sale.
Premium pet food brands demand the same shelf-life performance standards as human food. EVOH 3201-PF is specifically optimized for both dry kibble stand-up pouches (where fat oxidation and aroma retention are critical) and retort-sterilized wet food pouches (requiring EVOH grades with enhanced thermal stability at 121°C+ sterilization temperatures). The global pet food packaging market, valued at over $12 billion, is rapidly premiumizing — driving strong demand for EVOH barrier solutions that communicate quality and freshness to discerning pet owners.
EVOH barrier films protect oxygen-sensitive pharmaceutical products including vitamins, probiotics, omega-3 capsules, and biological drugs. In medical device packaging, EVOH layers in Tyvek-film pouches prevent oxidative degradation of polymer components and maintain sterile barrier integrity. TPS EVOH grades meet FDA food contact regulations and are compatible with gamma irradiation sterilization — critical requirements for pharmaceutical and medical OEMs specifying validated barrier packaging materials.
Agricultural EVOH films serve two distinct functions: as oxygen barriers in post-harvest MAP packaging for fruits and vegetables, and as fumigant retention films for soil treatment applications. SVW™ EW-4401S provides exceptional barrier against methyl bromide alternatives and phosphine fumigants used in grain storage, preventing gas escape that would reduce treatment efficacy and create environmental hazards. Additionally, EVOH-based seed and fertilizer packaging prevents oxidative degradation of sensitive agrochemical formulations during storage and distribution.
TPS EVOH 4401-EP addresses the specialized requirements of electronic packaging where both oxygen and moisture barriers are critical. Semiconductor wafers, PCBs, OLED displays, and lithium battery cells are packaged in EVOH barrier bags and pouches during manufacturing, shipping, and storage to prevent oxidative corrosion of metal contacts, solder joints, and sensitive polymer layers. The electronics industry's migration to miniaturized, high-density packaging makes EVOH barrier films an increasingly critical component of the global electronics supply chain.
The snack food and coffee packaging segments are among the fastest-growing EVOH application areas, driven by consumer demand for premium freshness combined with sustainable packaging. TPS EVOH 3801-SF enables brand owners to create high-oxygen-barrier flexible pouches for chips, nuts, coffee, and confectionery that are compatible with polyolefin recycling streams — solving the longstanding conflict between barrier performance and recyclability. This positions EVOH as the enabling material for the next generation of circular economy-compliant flexible packaging.
Beyond consumer packaging, EVOH barrier films serve demanding industrial applications including chemical packaging (preventing oxidative contamination of reactive materials), automotive component protection (preventing corrosion of precision metal parts), and construction material packaging (moisture and oxygen barriers for adhesives, sealants, and coatings). SVW™ EW-2901S is engineered for professional packaging applications requiring consistent barrier performance across wide temperature ranges and challenging logistics environments.
Since its establishment in 1950, TPS Specialty Chemical Limited has always focused on innovation and development in the chemical industry. Headquartered in Argentina, after more than 70 years of development, TPS has grown into one of the leading companies in the global chemical industry. We have branches around the world, especially in Hong Kong, which has laid the foundation for our rapid growth in the global market.
In the Chinese mainland, TPS has set up the R&D center in Chongqing City to focus on the research and development of high-tech materials and successfully launched high-barrier material EVOH resin. This product is widely used in food packaging, medicine and cosmetics with its excellent gas barrier properties and chemical stability, meeting the market's growing demand for high-performance materials. Our R&D team combines the technical advantages of multi-parties and is committed to continuously improving the quality and performance of products in order to better serve customers and the market.
As a company with an international vision, TPS actively seeks in-depth cooperation with well-known local chemical companies in many countries and regions to jointly develop a series of innovative products with market competitiveness.
TPS Specialty Chemical Limited has a team of experienced professionals, including chemical engineers, R&D experts and marketing personnel. With their deep industry knowledge and rich practical experience, they provide strong support for the company's continuous innovation and development.
We always attach importance to the growth and training of employees, and strive to encourage teamwork and innovation in a positive working environment so that every employee can fully realize their potential. Our production facilities are equipped with state-of-the-art co-extrusion lines, barrier film testing laboratories, and quality management systems certified to international standards.
Guided by the philosophy of "complete product categories, integrated services, and deep value-chain expertise," TPS focuses on EVOH resin, CPP and PVDC raw materials, specialty equipment, and high-performance plastic additives, delivering reliable and efficient solutions for diverse industrial applications.
Independent R&D capabilities with multiple patents, advanced production processes and technological innovation capabilities, meeting market demand for high-quality EVOH barrier products.
Large plant and production scale with efficient production capacity, enabling large-scale manufacturing and reduced unit costs for EVOH oxygen barrier film grades.
Diversified EVOH products covering multiple fields including food packaging, pharmaceutical, agricultural, electronic, and industrial barrier applications to meet different market needs.
R&D center in Chongqing with convenient transportation, facilitating raw material procurement, product distribution, and improved global logistics efficiency for EVOH barrier materials.
Focused on sustainable development, actively adopting environmentally friendly EVOH barrier materials and recyclable film technologies that meet modern environmental standards.
Branches worldwide including Hong Kong, with deep partnerships across Asia, Europe, and the Americas providing local market expertise and rapid delivery of EVOH barrier materials.
Full-service solutions including application guidance, technical consultation, barrier performance testing, and customized EVOH grade development for specific packaging requirements.
Consistent product quality with stable supply chain, FDA food contact compliance, and validated barrier performance data meeting pharmaceutical and food safety regulatory requirements.
Looking to the future, TPS Specialty Chemical Limited will continue to expand its global business and actively respond to market challenges with the purpose of "innovation-driven, win-win cooperation." We believe that through close cooperation with partners, TPS will play a more important role in the global chemical industry and create greater value for customers and society.
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